Question

State the laws of refraction of light.Explain the term 'absolute refractive index of a medium' and write an expression to relate it with the sped of light in vaccum

Answer 1

Law of refraction is nothing but Incident ray, refracted ray, normal at the point of incidence all lie in same plane
Snell 's law= sin i/sinr

Refractive index is generally defined with respect to vacuum and is called absolute Refractive index